Maohine for grinding and reboring engine-cylinders



W. I. JACKSGN MACHINE FOR GRINDING AND REBORING ENGINE CYLINDERS.

APPLICATION FILED 050.1, ms.

Patented Oct. 25, 1921.

3 SHEETSSHEET I- W. l. JACKSON. MACHENE FOR GRlNDING AND BEBORING ENGINE CYLINDERS.

APPLICATION FILED DEC. 1, 1919.

lwum 3. 3

3 SHEETS-SHEET?- Patented 0st. 25, 1921.

W. 3. JACKSGH. MAHINE FOR GRINBTNGAND REBGRlNG ENGINE CYLINDERS. APPLICATION FILED 020. 1. 19m.

1,394,836, Patented Oct. 25, 1921.

s SHEETS-SHEET a.

Be it known a (-iiizen of dank 1 New A 1e coun'iy a 21m! Reba the 'foihm 1U spa 'ificatimi.

This invcni to a class in cpnjunu' 1011 My inveni'imx to provide :1 mzunu played for r cmbunacwms of the cylii x Wt and du- Amde 1n any accom- 7G a w my accomplished main shaft ndn )Lbd to Cc or 01 ugmentary sec- *1 7c key on the a CiICiC L wznantary View, amply i in secion, taken gill cyhnde 1 Other 0b- :is a same 10 which may Q0 Vida I i'hmwh the t 0 1 h 1 J snusianimilv .-;& 7

rota as far posltmn ehliiien us i 25 annular gm ihe eccentz'i N 16nd i5 which mwosed plates in Contact a g'wve 1 proviue ms=ms guide and J shaft and their mfmion and i0 Lop of a length so that it extends some distance above the head. Protruding from the lower end of the bar 17 of the bracket toward the opening 16 of the head 15 is a lug 17 with an opening 17 therein. while protruding from the top of the bar also toward the opening 16 is a similar lug 18 having an opening 18 which is in register with the opening 17 of the lug 17 of the bracket. Projecting on an upward incline from the upper part of the plate 13 of the base 11 of the frame and in an opposite direction to the head 15 is a bar 20 having an arm 21 extend ing laterally relative to one side of the frame. At the intersection of the plate 13 with the head 15 of the frame are two spaced bearings 22 and 23 between which is a space 24 in communication with the opening 16 of the head 15.

Through the opening 16 of the head 15 of the frame is a shaft 25 which is disposed in spaced parallel arrangement relative to the bar 1730f the bracket 17, and this shaft is movable downwardly am upwardly as well as being rotatable. The shaft 25 is of a length so that its lower end portion may be moved considerable distance below the head 15 of the frame, and in the upper part of the shaft is a lengthwise slot 26. Held on the upper end of the shaft 25 is a peripherally grooved wheel or sleeve 26 which revolubly arranged in the slot 27 provided lengthwise in one end of a bar. 28 having on its second end an interiorly threaded sleeve 29. The sleeve 29 of the bar 28 is rotatable on a threaded rod or bar 30 having its ends revoluble in the openings 17 and 18 of the lugs 17 and 18 of the stationary bracket 17. The upper end of the shaft 25 is thereby journa'led in the bar 28, and as this bar is movable in downward and upward direct-ions when the threaded rod 30 is accordingly rotated the shaft is adapted to be moved downwardly and upwardly through the opening 16 of the head 15 of the frame 10 as well as being adapted to be swung in the radius of a circle during the rotation of the sha ft. as will be hereinafter more fully explained. To allow the upward movement of the shaft to be limited when suitably arranged in the frame. on the rod 30 above the sleeve 2!) of the slotted bar 28 is an adjustable nut 31 having a laterally projecting pin 32-h) serve as a handle for manipulating the nut when being adjusted. Hy positioning the nut at the proper heig'hton the threaded rod 30 the sleeve 29 of the slotted bar 28 will be limited in its upward movement on the rod 30. and in turn the upward movement of the shaft 25 will likewise be limited.

The shalft 25 is normally disposed through the opening 16 of the head 15 of the frame eccentrically with relation to the center of the opening, and the shaft is maintained in such position in the opening by an eccentric element, as 32. The eccentric element is preferably composed of a rotatable annular eccentric guide or band 33 with worm teeth 34 in its exterior periphery. and this hand surrounds the shaft 25 as well as being of a width so that it is spaced from the shaft besides being of a diameter 50 that its periphery revolves in the groove 15 of the head 15 of the frame whereby the teeth fi-i of the band will pass across the opening 2- between the bearings 22 and 23 of the frame. \Vithin the guide or band 33 is a disk which is rotatably adjustable in the band. and eceentricallv with respect to the axial center of the disk is an opening through which the shaft revolubly passes. Projecting upwardly from the disk around it opening is a boss 36 encirclineg the shaft.

while extending downwardly from the underside of the eccentric guide or disk 35 also around its opening may he a sleeve or boss 37 which encircles the shaft. The boss 37 is preferably somewhat larger in diameter than the shaft and within this boss is a fixed bushing 38 in which the shaft is journaled so .that the shaft is adapted to be moved in downward and upward directions through the bushing 37. throughthe opening of the disk 35 and through the boss 36 as well as being revoluble. The guide band 33 and the eccentric disk 35 are releasably locked together by providing in the top of the disk adjacent to its peripherv a row of spaced hole or sockets 38. and on the band 33 is a lug 39 arranged so that one of its ends overhangs the disk above the spaced sockets 38. In an opening in the overhanging end ofthe lug 39 is movably provided a screw pin. as 40., which is removably seated in one of the sockets 39 of the disk This disk i thereby adapted to be adjusted rotatably in the band by removing from one of the sockets 38 the pin 40 after which the disk is suitably adjusted rotatably in the band. and the pin'is then inserted in another one of the sockets of the disk according to its adjusted position. By arranging the disk 35 and the band 33 in this manner both are revoluble in unison for causing the shaft 25 to move in the radius of a circle when the shaft is revolved andthis arrangement also permits the disk to be adjusted in the band for shifting the shaft to various positions relative to the center of the open-- ing 16 of the heady 15 of the frame 10 so that the shaft may be adjustably positioned to move in the path of circles of different radii simultaneously with its rotation. The end of the shaft 25 below the bushing 38 may be. threaded, and on this threaded part may be two coiiperating nuts 42 and d3 serving to allo a grinder. as 45. to be detachably fastened on the shaft The grinder 45 may be in the form of a Wheel of emery, carboin conjunetien W r'uncluni other materiel, grinding Wheel 1 m.v vice having one as carbonuceeus clepos -ti cylinder, an inter? or the 63 requires.

The grinder 01* pare of my inven verioiis types GLUML lie ordei to Fri. means may be prim M empley a form 1.

80 mechanism 47 caesium frame 10 fllJOVG its head 1'5 b which ai'e plates-are 35 each plate w arm 51., and lengeplates are reg cross-arms 51 r two spaced pul side flee 21 50, and reveluble s zed posed bee the nec zecl b a in the plaize ei' d pin below of the rod pulley 55, The r so that their se' distances bay/one between the m 40 on the free miles 60. @n and the plate I? .i spring, not shown, i U eween its head 60 :11. i $2, and "both of 1 for serving to gether with pin :1., T5, iepreconsists: 01'

f the bar 30 directions from pulleys and i Jere in the the "ll-shaped plaier 60 -25 eeeve the base 2- 35 is e peliey jecfiing 64 whim 26 01"" the shaft i3 valved will rotate t and its lug ere lei the shaft to be YIEOVBLE dewnwm" Warclly through alley. (in 63 is a belt 65, para 0? which passes pulley 54, then over the pulley .vthe pulley The oppesii e qari may be free of the pulieye 58, the belt passes over :1. pulley 3 p L iiia be of any Well known 01* m I r r (35 am this em;

312E23 K73 u.

\ on-the shaft 67 of an electric motel 45 to their normal positions on the upper end of the bar 30 of the bracket i7 is provided a handle 84. By holding the nut 2-31 of the bar 30 in proper position. and rotating the handle 84 accordingly the bar l will be revolved for causing the slotted bar 28 to move upwardly on the bar Il and in turn the shaft 25 and grinder l3 will be reversely moved to their positions prior to being moved downwardly during the grinding or reboring process.

In the foregoing description. I have em bodied the preferred form of my invention. but I do not wish to be understood as limiting myself thereto as I am aware that modi fications may be made therein without do parting from the principle or sacrificing any of the advantages of this invention. therefore. I reserve to myself the right to make such changes as fairly fall within the scope thereof.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The combination. in a machine of the class described. of a hollow stationary head with registered openings leading from its interior. an annular guide clement rotatable in the head. a shaft for being disposed interiorly of an engine cylinde' and the shaft being ecccntrimilly journaled within the guide as wellas being also adjustable and slidable in the guide. mechanism for driving the shaft. mechanism operable in unison with the operation of the driving mechanism whereby the guide element will be revolved for moving the shaft in the radius of a ircle while being rotated. and an adjusting device operable with the driving of the shaft for causing the shaft to move lengthwise of the engine cylinder at intervals during their rotation.

52. The combination. in a machine of the class described. of a hollow stationary head with registered openings leading from its interior. an annular guide element rotatable in the head. .a slidably rotatable shaft for being disposed interiorly of an engine cylind r and the shaft being journaled in the guide as well as being disposed eccentric-ally with relation to the center of the registered openings of the head. mechanism for driving the shaft. means operable in unison with the. operation of thh mechanism whereby the guide element will be revolved for moving the shaft in the radius of a circle while being rotated. means associated with the guide element for adjusting the shaft in various eccentric positions in the guide element and in the registered openings. and an adjusting device operable with the driving of the shaft for causing the shaft to move lengthwise of the engine cylinder at intervals during their rotation;

3. The combination, in a machine of the with relation to the'center of the opening.

mechanism for driving the shaft, means operable in unison with the operation of the mechanism whereby the guide element will be revolved for moving the shaft, in the ,radius o a circle while being rotated, means adjustably connecting the eccentric to the guide element. for adjusting the shaft in various eccentric positions in the guide element. and an adjusting device operable with the'jlriving of the shaft for causing the shaft to move in the frame lengthwise of the engine cylinder at intervals during their rotation.

4-. The combination, in a machine of the class described. of a frame having a circular opening, a slid-ablyrotatable shaft for being disposed interiorly of an engine cylinder and the shaft being journaled in the frame as well being disposed through the opening of the frame. an eccentric r0- tatable in the opening of the frame for positioning the shaft eccentrically with rela tion to the center of the opening mecha nism for driving the shaft. means operable in unison with the operation of the mechanism whereby the eccentric will be operated to move the shaft in the radius of a circle while being rotated. and an adjusting device operable with the driving of the shaft for causing the shaft to move in the frame lengthwise of the engine cylinder at inter-- vals during their rotation.

J cumin. 0.: amacine ie class describedof 'a frame having a circu lar opening. an annular toothed guide element rotatable in the opening of the frame, a slidably adjustable shaft for being disposed interiorly of an engine cylinder and the shaft being jonrnaled in the frame as well as being disposed through the opening of the frame; a disk on the shaft and adjustably rotatable in the opening of the frame for positioing the shaft eccentrically with relation to the center of the opening. mechanism for driving the shaft, means operable in unison with the ope 'ation of the mechanism whereby the guide element and disk will be revolved for moving the shaft in the radius of a circle while being rotated, means associated with the guide element and disk for adjusting the disk whereby the shaft will be adjusted in various eccentric positions in the guide element. and an adjusting device operable with the driving of the shaft for causing the shaft to move in seeese the frame lengthwise of the engine cylinder at intervals during their rotation.

6. The combination, in a machine of the class described, of a frame having a circular openingyan annular toothed guide element rotatable in the opening of the frame, a shaft for being disposed interiorly of an engine cylinder and the shaft being journaled in the frame as Well as being disposed through the opening of the frame, a disk fixed on the shaft and adjustably rotatable in the opening of the frame for positioning the shaft eecentrically with relation to the center of the opening, a bracket on the frame, a motor on the bracket for driving the shaft, means manually operable in unison with the operation of the motor whereby the guide element and disk Will be evolved for moving the shaft in the radius of the circle while being rotated, and means asso mated with the guide element and disk for adjusting the disk whereby the shaft wilt Y, T. CmsWnLL, J. FREDERICK CRYER. 

